UC Santa Barbara
Simulations of open ballistic quantum systems and semiclassical semiconductor superlattices
- Author(s): Essen, Jonathan R.
- Advisor(s): Sherwin, Mark
- Birnir, Bjquot;orn
- et al.
The tunable antenna-coupled intersubband terahertz (TACIT) sensor is a heterodyne mixer based on the coupling of intersubband absorption with the sheet resistivity of doped GaAs/AlGaAs quantum wells. A theoretical treatment of this device as an open quantum system operating at the ballistic limit leads to the development of perfectly matched layers for the position-space Liouville-von Neumann equation.
Meanwhile, the nonlinear dynamics of weakly-coupled, doped GaAs/AlGaAs superlattices in the sequential-tunneling regime are theoretically characterized by computing the Poincar